package goliath;

import javax.swing.filechooser.FileFilter;
import java.io.File;

/**
 * @author will
 * @date Aug 10, 2008 1:44:45 AM
 */
public class XmlFileFilter extends FileFilter {
    public boolean accept(File f) {
        if (f.isDirectory()) {
            return true;
        }
        String extension = getExtension(f);
        return extension != null && extension.equals("xml");
    }

    public String getDescription() {
        return "Xml file";
    }

    /*
     * Get the extension of a file.
     */
    public static String getExtension(File f) {
        String ext = null;
        String s = f.getName();
        int i = s.lastIndexOf('.');

        if (i > 0 &&  i < s.length() - 1) {
            ext = s.substring(i+1).toLowerCase();
        }
        return ext;
    }
}
